Art refers to a diverse range of human activities in creating visual, auditory or performing artifacts. These artworks express the author's imaginative or technical skill. Art is intended to be appreciated for its beauty or emotional power. In their most general form these activities include the production of works of art, the criticism of art, the study of the history of art, and the aesthetic dissemination of art.

Functions of arts: Art has had a great number of different functions throughout its history, making its purpose difficult to abstract or quantify to any single concept. This does not imply that the purpose of Art is "vague", but that it has had many unique, different reasons for being created.

Art can have a personal function, it is an expression of basic human instinct for harmony, balance, rhythm. Art at this level is not an action or an object, but an internal appreciation of balance and harmony (beauty), and therefore an aspect of being human beyond utility. Art also provides a way to experience one's self in relation to the universe. This experience may often come unmotivated, as one appreciates art, music or poetry.

On the other hand, art may have a social function. At its simplest, art is a form of communication. It seeks to entertain and bring about a particular emotion or mood, for the purpose of relaxing or entertaining the viewer. Art may also be an expression of social protest, seeking to question aspects of society. Source: 

Wikipedia

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